Check a pick's record

Every day at 00:15 (Madrid time) we record every pick published the day before in a fingerprint: a hash tree whose root is sealed in Bitcoin with OpenTimestamps. Anyone can check that a pick existed that day with that content, and whether it was changed or deleted later.

Recorded and unchanged

Recorded on 10/13/2026 at 06:43 PM, included in the fingerprint of 10/13/2026.

Pick: #1013439Paid
Tipster: Los pronósticos del Prisionero (@LPDP)
Selection: Hidden: this is an unsettled paid pick. The fingerprint stores its hash; it can be checked once it settles.
Fingerprint of 10/13/2026: 77513d56 4616eef4 baa5c499 e6542aac 55844484 651ecd11 68c8a07b d0950e7d
Pick leaf: 32c7bcb6 b3b6f056 55354a78 0f8c6023 75107541 c2435ff3 1a83dc5f 7362681bPosition 397 of 583
Bitcoin seal: Sent to OpenTimestamps on 10/14/2026, 12:17 AM; Bitcoin confirmation takes a few hours. Download the .ots

Inclusion proof (10 steps)

1. right 09674329c6abe7212960f85d363cfbafb2dc25fa63e3fa197b0c4912618f8353
2. right 126ae95ae70ef5b163fbaed213822849942a9ec7c408cc049b213f917222df72
3. left 5cb4100a7859ce4e083aaaa67a9c4f5ce6a5f50a0c242a800d0aef187a4f2e38
4. left 11859738ec042144a5942987f921e0334edc7be7cd076999c719913a3f9b2961
5. right 774bb2d32ec175debb0968abf3e10bb8168a788bf37b2d9c0744b0250b163bbc
6. right 038373f073eda9e58720c8fdd850bfa12e49226f889c7e1cc4f5d3bb0871287b
7. right c6cbb1bdf897c1447ebacfa100ebb6f69aeab1b7c79973b3bc8d4d00b97a3a6d
8. left 9a41d1abb31b6aeae27f4c52d5414701cd70b2a38480517bbd85b2b2e2dace34
9. left 2d81324c5bc92627c3308608b28b29f3e552f90e7d3bfcbc7bf65740b789f705
10. right b30a4476cb06e8b2be1f916ac5cd0813df0b9be19e1fa148216107563855e938

How to check without trusting us: the leaf is SHA-256(0x00 + content) and each step SHA-256(0x01 + left + right). If the path reaches the root and the .ots verifies with the official OpenTimestamps client (ots verify), the pick was recorded that day. This proves when it was published and that it wasn't touched; it says nothing about whether the pick is good.